Bacterial community structure associated with the rhizosphere soils and roots of Stellera chamaejasme L. along a Tibetan elevation gradient

Hui Jin, Xiaoyan Yang, Rentao Liu, Zhiqiang Yan, Xudong Li, Xiuzhuang Li, Anxiang Su, Yuhui Zhao, Bo Qin

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The effect of altitude on the composition and diversity of microbial communities have attracted highly attention recently but is still poorly understood. We used 16S rRNA gene clone library analyses to characterize the bacterial communities from the rhizosphere and roots of Stellera chamaejasme in the Tibetan Plateau. Our results revealed that Actinobacteria and Proteobacteria were dominant bacteria in this medicinal plant in the rhizosphere and root communities. The Shannon diversity index showed that the bacterial diversity of rhizosphere follows a small saddle pattern, while the roots possesses of a hump-backed trend. Significant differences in the composition of bacterial communities between rhizosphere and roots were detected based on multiple comparisons analysis. The community of Actinobacteria was found to be significantly negative correlated with soil available P (p < 0.01), while the phylum of Proteobacteria showed a positive relationship with available P (p < 0.05). Moreover, redundancy analysis indicated that soil phosphorus, pH, latitude, elevation and potassium positively correlated with bacterial communities associated with rhizosphere soils. Taken together, we provide evidence that bacterial communities associated with S. chamaejasme exhibited some certain elevational pattern, and bacterial communities of rhizosphere soil were regulated by environmental characteristics along elevational gradients in this alpine ecosystem.

Original languageEnglish
Pages (from-to)273-286
Number of pages14
JournalAnnals of Microbiology
Volume68
Issue number5
DOIs
StatePublished - 1 May 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature and the University of Milan.

Funding

Acknowledgements The authors are grateful the Professor Frank Stermitz for assistance with language editing. This work was financially supported by the National Key Research and Development Program (2017YFD0200804), the National Natural Science Foundation of China (No. 31772668, 21775154, 31560037 and 31570354), the Open Project Program of Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration of North-western China/Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in North-western China of Ministry of Education (2017KF009), the Open Project Program for State Key Laboratory of Grassland Agro-ecosystem of Lanzhou University (SKLGAE201704), Basic Research Program of Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (080423SYR1), the Youth Science Foundations of Gansu Province (1506RJYA294), and Around five top priorities program of BOne-Three-Five^ Strategic Planning of Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences.

FundersFunder number
Basic Research Program of Lanzhou Institute of Chemical Physics
Open Project Program for State Key Laboratory of Grassland Agro-ecosystem of Lanzhou UniversitySKLGAE201704
National Natural Science Foundation of China31772668, 31570354, 21775154, 31560037
Ministry of Education of the People's Republic of China2017KF009
Chinese Academy of Sciences080423SYR1
Youth Science Foundation of Jiangxi Province1506RJYA294
Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences
National Key Research and Development Program of China2017YFD0200804

    Keywords

    • Bacterial community
    • Elevation gradient
    • Phylogenetic diversity
    • Stellera chamaejasme L
    • Tibetan Plateau

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